Home / 99,809.02-148,949.68-89,159.45

Finding the Fourth Proportional to 99,809.02, 148,949.68 and 89,159.45

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Solution

The fourth proportional to 99,809.02, 148,949.68 and 89,159.45 is: 133,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,809.02 : 148,949.68 = 89,159.45 : x
  2. Step 2: Convert to fraction form
    99,809.02/148,949.68 = 89,159.45/x
  3. Step 3: Cross multiply
    99,809.02x = 148,949.68 × 89,159.45
  4. Step 4: Simplify right side
    99,809.02x = 13,280,270,876.47
  5. Step 5: Solve for x
    x = 13,280,270,876.47/99,809.02
  6. Step 6: Final answer
    x = 133,056.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.